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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 4 |
| 2 | 6 |
| 3 | 8 |
| 4 | 16 |
| 5 | 18 |
| 6 | 20 |
| 7 | 34 |
| 8 | 50 |
| 9 | 56 |
| 10 | 68 |
| 11 | 172 |
| 12 | 174 |
| 13 | 228 |
| 14 | 230 |
| 15 | 244 |
| 16 | 260 |
| 17 | 268 |
| 18 | 270 |
| 19 | 272 |
| 20 | 296 |
| 21 | 460 |
| 22 | 462 |
| 23 | 464 |
| 24 | 486 |
| 25 | 488 |
| 26 | 498 |
| 27 | 500 |
| 28 | 510 |
| 29 | 516 |
| 30 | 662 |
| 31 | 676 |
| 32 | 678 |
| 33 | 762 |
| 34 | 806 |
| 35 | 822 |
| 36 | 824 |
| 37 | 864 |
| 38 | 880 |
| 39 | 882 |
| 40 | 884 |
| 41 | 894 |
| 42 | 906 |
| 43 | 908 |
| 44 | 932 |
| 45 | 938 |
[2,4,6,8,16,18,20,34,50,56,68,172,174,228,230,244, 260,268,270,272,296,460,462,464,486,488,498,500, 510,516,662,676,678,762,806,822,824,864,880,882, 884,894,906,908,932,938] |